public class BlackLandCorp implements Advertisement{
    @Override
    public void showAdvertisement() {
        System.out.println("################");
        System.out.println("这是黑土广告公司广告词");
        System.out.println("#################");

    }

    @Override
    public String getCorpName() {
        return "黑土广告公司";
    }
}
